基于极化的缩短Polar码删余图样选择

刘顺兰; 胡爱明; 包建荣

doi:10.11959/j.issn.1000-0801.2019006

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基于极化的缩短Polar码删余图样选择

研究与开发 | 更新时间：2024-06-05

- 基于极化的缩短Polar码删余图样选择
- Polarization-based puncturing pattern selection of shortened Polar code
- 电信科学 2019年35卷第2期页码：51-58
- 作者机构：
- 作者简介：
  
  [ "刘顺兰（1965- ），女，杭州电子科技大学教授，主要研究方向为信息与信号处理、无线通信等。" ]
  [ "胡爱明（1993- ），男，杭州电子科技大学硕士生，主要研究方向为无线协作通信、信道编码等。" ]
  [ "包建荣（1978- ），男，博士，杭州电子科技大学教授，主要研究方向为空间无线通信、通信信号处理与自主无线电等。" ]
- 基金信息：
  
  浙江省自然科学基金资助项目;The Zhejiang Provincial Natural Science Foundation of China(LY18F010013);浙江省自然科学基金资助项目;Natural Science Foundation of Zhejiang Province of China(LY17F010019);国家自然科学基金资助项目;The National Natural Science Foundation of China(61471152)
- DOI：10.11959/j.issn.1000-0801.2019006
  中图分类号： TN911
- 网络出版日期：2019-02，
  
  纸质出版日期：2019-02-20
- 稿件说明：
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刘顺兰, 胡爱明, 包建荣. 基于极化的缩短Polar码删余图样选择[J]. 电信科学, 2019,35(2):51-58.

Shunlan LIU, Aiming HU, Jianrong BAO. Polarization-based puncturing pattern selection of shortened Polar code[J]. Telecommunications science, 2019, 35(2): 51-58.
刘顺兰, 胡爱明, 包建荣. 基于极化的缩短Polar码删余图样选择[J]. 电信科学, 2019,35(2):51-58. DOI： 10.11959/j.issn.1000-0801.2019006.

Shunlan LIU, Aiming HU, Jianrong BAO. Polarization-based puncturing pattern selection of shortened Polar code[J]. Telecommunications science, 2019, 35(2): 51-58. DOI： 10.11959/j.issn.1000-0801.2019006.

摘要

针对 Polar 码码长不灵活的问题，提出一种新的反馈代价删余的删余图样选择方案，用来生成缩短Polar码。该方案以极化效果保留为目的，选择次优子信道作为代价位，并以此代价位对应的输出位作为删余图样，再通过反馈调整代价位的值来获得缩短Polar码。仿真结果表明，在不同信道、不同码率条件下，由本文方法生成的缩短 Polar 码性能均优于位反转置换算法生成的缩短 Polar 码和末尾直接删余生成的缩短 Polar码，稍弱于由Wang R和Liu R等人提出的缩短Polar码。在AGWN信道下，当误块率为10

-3

时，由本文方法生成码率为0.5的缩短Polar码相比于位反转置换算法可获得0.5 dB的增益，编码性能有较大提升。

Abstract

In order to solve the problem of inflexible Polar code length

a new puncturing pattern selection scheme based on feedback cost puncturing was proposed to generate shortened Polar codes.In this scheme

the Polarization effect was reserved

the sub-optimal subchannel was selected as the cost bit

the output bit corresponding to the cost bit was used as the puncturing pattern

and then the value of the cost bit is adjusted by feedback to obtain the shortened Polar code.Simulation results show that the performance of the proposed shortened Polar code is better than that of the

shortened Polar code generated by bit-reversal permutation method

and the shortened Polar codes generated by direct puncturing method at the end under different channel and code rate conditions

and slightly weaker than that of the shortened Polar code proposed by Wang R and Liu R et al.In the AGWN channel

when the block error rate is 10

-3

the proposed shortened Polar code with a code rate of 0.5 can obtain a gain of 0.5 dB compared with the shortened Polar code generated by bit-reversal permutation method

and the coding performance is greatly improved.

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references

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